Shock absorber



. ,llljlllllllllllllllllllllill Nov; 24, 1925.

W. 'G. DANIEL ET AL SHOCK ABSORBER Filed May 11. 1925 INVENTORS Mfiagera;

ATTORNEY;

Patented Nov. 2 1, 1925.

n err WILLIAM G. DANIEL AND NATHAIRIIEL SHOCK Application filed May 11, 1925.

To all whom. it may concern:

Be it known that we, WILLIAM G. DANIEL and Nina-ma lin. Recess, citizens of the United Stat s, residing at Sunburst, in the county of Haywood and State. of North Carolina, have invented certain new and useful Improvements in Shock Absorbers, of which the following is a specification.

This invention relates to shock absorbers for use in connection with motor vehicles, and has for its object to provide, in a manner as hereinafter set forth, a device of the class referred to, with means for reducing shock to a minimum when the vehicle meets with an obstruction when travelling over an uneven roadbed.

A. further object of the invention is to provide, in a manner as hereinafter set forth, a device of the class referred to, with means for cushioning the vehicle spring on the c mpression and rebound thereof and with the cushioning action applied to the spring on the rebound greater than that applied on compression, under such conditions overcoming the application of sudden shocks to the vehicle and further absorbing shock to a minimum when the vehicle is'travelline' over an uneven road surface or meets with an obstruction.

Further objects of the invention are to provide; in a manner as hereinafter set forth, a shock absorber, which is simple in its construction and arrangement, strong, durable, compact, thoroughly efficient in its use, conveniently installed, and. compare-- ti vel y inexpensive to manufacture.

With the foregoing and other objects in view, the invi-intion consists of the novel construction, combination and arrangement of parts, ashereinafter more specifically described and. illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views lligriire 1 is a side elevation of a shock absorber, in accordance with this invention, showing the adaptation thereofwith re spect to avehicle spring and the chassis of the latter.

Figure 2 is a top plan view of the struc ture shown in Figure 1.

RQGERS, O1? SUNBTJ'RST, NORTH. CAROLINA.

ABSORBER.

Serial No. 29,490.

dicatcs a portion of one of the side bars of l a cl'iassis, 2 a vehicle spring of the laminated type of concave curvature, and which is pivotally connected at its outer end to the outer end of the bar 1, as at S. The inner end of the spring 2 is pivotally connected, as at 1, to a link coupling 5, which depends from the bar 1. The spring 2 is arranged below the bar 1 and mounted on, well as being connected tothe vehicle axle (l. The spring 2 can be connected in. any suit able manner with the axle 6, and by way of example the axle {3 is formed with a pair of oppositely extending offsets 7 and 8, and to each of which is connected an inverted yoke, by the nuts 9. One of the yohes is indicated at 10 and the other at 11. The yolrcs surround the spring 2 and the yoke 11 has extending from the top thereof a lateral lug 12, upon which is pivotally mounted the lower lever arm of a pair of toggle lever arms. The lever arms of said pair are indicated at 13, 1 1, have their opposed ends pivotally connected together by a pivot bolt 15, and the upper arm 13 of the pair is pivotally mounted on a pivot bolt 16, which projects from one side of the bar 1.

Depending from the bar 1, is a hanger member 17, having pivotally conner ed. therewith, as at 18, the rear =1 01 a cushioning fluid containing cylinder 19. The rear end of the cylinder 19 is formed with an integral arm 20, through which the pivot 18 extends. The cylinder 19 is formed with a filling opening 21. closed by a removable plug 22'. The cushioning fluid employed is preferably oil, but any suitable fluid can be utilized for cushioning purposes. The cylinder 19 has its forward end open and threadedly engaging; with said forward end is a flanged closure cap 23 therefor. The cap 23, centrally of its outer face is provided with a )eripherally threaded cylindrical extension 2 1, and the cap 25:3 axially thereof is provided with an opening 25 for the passage of a piston rod 26. The extension 24 somewhat elongated to form a bearing for the rod 26.

Surrounding the rod 26, exterlorly of the extension 2%, are packing elements QT and which are secured in position by a flanged 1 11101111111; applied 10 i ere 1. 1; H1 nhsorbe COHEP '1' threadedly e n 1 paeemu e0 the piston 1111i reunxom"my lnoveanen pin-Lien 1 v 1 ZHHY 1 l 11 1 1 1 O C 1. 0 1D 1 C S 111111 the 1-1 shock 11b W1 11 full WE ehonmi eetnw ed be mad 111 men A s 1001'; abs

vehieles compri Yer for i1) soeke inc p1 V0111] 1y (owm'ds respeei nely on The "Led 3110111 ('0111 ni'ession 511111111 1 n1 l H travels fowzuflis the :1 veh 11-11:

and

when the nMnn hem] imwh' 11H web Jenna oinHy conneeting one 1 vehiele body, 1110:1111; for

he other of $11 move lewn (he of When 011?; ehiits on the 17 (he vehicle 1011 wlth 11 valve 1 e1 1111 rebound 1 1111121101 1110111 U when San pressvion 111111 spring 111 1:0

the pa 17111011 11 the 1'01"- con H if (he ens '7 v 1*) 11111 11111- 01' 0 he :1( 101-11 1: He?! 1110:1111 1'01 H10 passzwe of 1h cnshioniny' 1111111 When 7 n'es ion of for (:onm hehvee :tion 0 with men tmnmh' IV on 1110111, shitl'h hide $111111 11 ole 1' 112-111;: 10 nrovid h the W .3 10 lever her 1e pivot 111111111011 01 1h 1110951011 and l'eeonnd 0 J1 shoe 7 112111: eonneeize? and means and 11 i 1 a Q 6 when.

1 .7 I 10 211-111; 111-: (101-12111? the 1' hen 1 he passage in 311145110 new compression and rebound of a vehicle spring, means for pivotally connecting one of said arms to the vehicle body, means for pivot-ally connecting the other of said arms with the vehicle spring, a fluid cushioning mechanism including a piston element pro vided with a permanently open passage for the travel of the cushioning fluid there through when said element shifts on the compression and rebound of the vehicle spring and further provided with a valve controlled means for the passage oi? the cushioning fluid when the element shifts on the compression of the vehicle spring, means for connecting saic elen'ient to the pivot between said lever arms to provide for the operation of the element on the compression and rebound of the vehicle spring, and means connected to said mechanism'and slidably connected to the pivot between said arms to provide a combined support and guide for the pivot.

4-. A shock absorber for vehicles comprising a pair of toggle lever arms having their opposed ends pivotally connected together,

said arms movable towards and from each other respectively on the compression and rebound of a vehicle spring, means for pivotally connecting one of said arms to the vehicle body, means for pivotally connecting the other of said arms with the vehicle spring, a fluid cushioning mechanism including a piston element provided. with a permanently open passage for the travel oi the cushioning fluid therethrough when said element shifts on the compression and rebound of the vehicle spring and further provided with a valve controlled means for the passage of the cushioning fluid when the element shifts on the compression of the vehicle spring, and a yoke shaped member carried by said element, straddling the opposed ends of said arms and connected to the pivot for said ends to provide for the operation 01 the element on the compression and rebound of the vehicle spring.

In testimony whereof, we atlix our signatures hereto.

lVILLIAM G. DANIEL. NATHANIEL ROGERSQ 

